How to Know if you Like SomeonePicture them and you. On a date. Doing whatever: movie,dinner,night club/school dance,drive-in,walk around the street,prom,ect. Talking about the things you both like. To make it more effective, try acting out the scene in some way(faciel expressions,whsipering,ect).
And/or put on your favorite love song(if you have one). Then imagine(if you're a guy) walking her home, and she gives you a goodnight kiss . If you're a girl, imagine him walking you home and give him a goodnight kiss(or vice versa,but I would reccomend girl kisses boy on the cheek)
Its also good to imagine them saying "You're amazing/sweet/awesome/ect." or "I think your really cute :3". And don't think about anything that could go wrong on your pretend date. Think positive.
If doing this little exercise gives you a warm and fuzzy feeling, you like them
Also one somewhat related note, most girls (including me lol) like it when a guy shows he's a tiny bit jealous when he sees her talking to some other guy(and he's bein